/*
 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.
 * Copyright (C) 2011, 2013-2024 The JavaParser Team.
 *
 * This file is part of JavaParser.
 *
 * JavaParser can be used either under the terms of
 * a) the GNU Lesser General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * b) the terms of the Apache License
 *
 * You should have received a copy of both licenses in LICENCE.LGPL and
 * LICENCE.APACHE. Please refer to those files for details.
 *
 * JavaParser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 */

package com.github.javaparser.symbolsolver.javaparsermodel.declarations;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

import com.github.javaparser.JavaParserAdapter;
import com.github.javaparser.ParserConfiguration;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.Node;
import com.github.javaparser.ast.body.VariableDeclarator;
import com.github.javaparser.ast.expr.NameExpr;
import com.github.javaparser.resolution.declarations.AssociableToAST;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedValueDeclarationTest;
import com.github.javaparser.symbolsolver.resolution.AbstractResolutionTest;
import com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.JavaParserTypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
import java.nio.file.Path;
import java.util.List;
import java.util.Optional;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.condition.EnabledForJreRange;

class JavaParserVariableDeclarationTest extends AbstractResolutionTest implements ResolvedValueDeclarationTest {

    @Override
    public Optional<Node> getWrappedDeclaration(AssociableToAST associableToAST) {
        return Optional.of(
                safeCast(associableToAST, JavaParserVariableDeclaration.class).getWrappedNode());
    }

    @Override
    public JavaParserVariableDeclaration createValue() {
        String code = "class A {a() {String s;}}";
        CompilationUnit cu = JavaParserAdapter.of(createParserWithResolver(defaultTypeSolver()))
                .parse(code);
        VariableDeclarator variableDeclarator =
                cu.findFirst(VariableDeclarator.class).get();
        ReflectionTypeSolver reflectionTypeSolver = new ReflectionTypeSolver();
        return new JavaParserVariableDeclaration(variableDeclarator, reflectionTypeSolver);
    }

    @Override
    public String getCanonicalNameOfExpectedType(ResolvedValueDeclaration resolvedDeclaration) {
        return String.class.getCanonicalName();
    }

    @Test
    void test3631() {
        String code = ""
                + "class InnerScope {\n"
                + "    int x = 0;\n"
                + "    void method() {\n"
                + "        {\n"
                + "            var x = 1;\n"
                + "            System.out.println(x);   // prints 1\n"
                + "        }\n"
                + "        System.out.println(x);       // prints 0\n"
                + "    }\n"
                + "    public static void main(String[] args) {\n"
                + "        new InnerScope().method();\n"
                + "    }\n"
                + "}";

        CompilationUnit cu = JavaParserAdapter.of(createParserWithResolver(defaultTypeSolver()))
                .parse(code);

        List<NameExpr> names = cu.findAll(NameExpr.class);
        ResolvedValueDeclaration rvd = names.get(3).resolve();

        String decl = rvd.asField().toAst().get().toString();

        assertTrue("int x = 0;".equals(decl));
    }

    @Test
    @EnabledForJreRange(min = org.junit.jupiter.api.condition.JRE.JAVA_9)
    void testJavaBaseModuleImport() {
        String code = "import module java.base;\n" + "\n"
                + "public class Test {\n"
                + "  void foo() {\n"
                + "    List<String> l = new ArrayList<>();\n"
                + "  }\n"
                + "}";

        JavaParserAdapter adapter = JavaParserAdapter.of(createParserWithResolver(defaultTypeSolver()));
        adapter.getParserConfiguration().setLanguageLevel(ParserConfiguration.LanguageLevel.JAVA_25);
        CompilationUnit cu = adapter.parse(code);

        List<VariableDeclarator> variables = cu.findAll(VariableDeclarator.class);

        ResolvedValueDeclaration rvd = variables.get(0).resolve();

        assertEquals("java.util.List<java.lang.String>", rvd.getType().describe());
    }

    @Test
    void testJavaModuleImportFromSource() {
        String code = "import module com.github.javaparser.testmodule;\n" + "\n"
                + "public class Test {\n"
                + "  void foo() {\n"
                + "    TestClass t = new TestClass();\n"
                + "  }\n"
                + "}";

        Path moduleCode = adaptPath("src/test/resources/modules/src/main/java/com.github.javaparser.testmodule");

        JavaParserTypeSolver javaParserTypeSolver = new JavaParserTypeSolver(moduleCode);
        CombinedTypeSolver combinedTypeSolver =
                new CombinedTypeSolver(javaParserTypeSolver, new ReflectionTypeSolver());

        JavaParserAdapter parser = JavaParserAdapter.of(createParserWithResolver(combinedTypeSolver));
        parser.getParserConfiguration().setLanguageLevel(ParserConfiguration.LanguageLevel.JAVA_25);
        CompilationUnit cu = parser.parse(code);

        List<VariableDeclarator> variables = cu.findAll(VariableDeclarator.class);

        ResolvedValueDeclaration rvd = variables.get(0).resolve();

        assertEquals(
                "com.github.javaparser.testpackage.TestClass", rvd.getType().describe());
    }
}
